Ready to put a parts list together. Have a 67 2bbl 330 previous owner says 20K on the rebuild, but I will still go in for a look. I have the plain Cutlass, so I assume it is the lower hp model.
I would like more hp so to convert to a 4bbl carb and intake, what should be done to the internals and heads to make this happen the correct way.
Thanks.

 

Just an intake manifold and carburetor. Don't need to do anything to the internals to go to 4 bbl. I don't have an intake but do have an original 330 4bbl carburetor from a 67. It would need rebuilt but I would let it go for $60 shipped.

 

All you need is a 4v manifold and a compatible carb. It could be stock or aftermarket. Some other minor adjustments would include but not limited to a fuel line mod, minor linkage mods, choke, and a different air cleaner housing.